Hydrochloric Acid → 2-(6-((2-(3-Chlorophenyl)-6-cyclopropylpyrimidin-4-yl)amino)pyridin-3-yl)acetic acid

HRID 1508918Notes

Reaction equation

[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[N:13]=[C:12]([NH:14][C:15]3[N:20]=[CH:19][C:18]([CH2:21][C:22]([O:24]CC)=[O:23])=[CH:17][CH:16]=3)[CH:11]=[C:10]([CH:27]3[CH2:29][CH2:28]3)[N:9]=2)[CH:5]=[CH:6][CH:7]=1.O1CCOCC1.O.[OH-].[Li+].Cl>O>[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[N:13]=[C:12]([NH:14][C:15]3[N:20]=[CH:19][C:18]([CH2:21][C:22]([OH:24])=[O:23])=[CH:17][CH:16]=3)[CH:11]=[C:10]([CH:27]3[CH2:29][CH2:28]3)[N:9]=2)[CH:5]=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 50 °C

Procedure

An 250-mL round bottom flask was charged with ethyl 2-(6-((2-(3-chlorophenyl)-6-cyclopropylpyrimidin-4-yl)amino)pyridin-3-yl)acetate (0.417 g, 1.02 mmol), dioxane (20 ml) and water (10 ml). To this solution was then added lithium hydroxide monohydrate (0.214 g, 5.10 mmol). The resulting mixture was stirred at 50° C. for 1.5 h. The cooled reaction mixture was treated with 2N aqueous HCl until pH˜4 affording a solid. The solid was isolated by filtration and dried under reduced pressure at 55° C. to afford the title compound (0.408 g, 100%) as a white solid. MW=380.83. M.p.>260° C. 1H NMR (DMSO-d6, 500 MHz) δ 12.33 (br s, 1H), 10.41 (s, 1H), 8.32-8.24 (m, 3H), 7.80-7.70 (m, 2H), 7.60-7.52 (m, 3H), 3.62 (s, 2H), 2.10 (septet, J=4.5 Hz, 1H), 1.16-1.10 (m, 2H), 1.10-1.02 (m, 2H); ESI MS m/z 381 [M+H]+.

Workup

customThe cooled reaction mixture
customaffording a solid
customThe solid was isolated by filtration
customdried under reduced pressure at 55° C.

Sources & evidence

ORD record: ord-09e7e3e1d09e441c9ec4724e15417316
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09221843B2

Reaction notes

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